hi! i’m a high school student in a science competion and i had to build an instrument. i made a wind instrument, but i dont’ know where to drill the holes 
. i was told this website would be helpful. i need to know if there is a way to figure this out asap so i can get real notes out of it. here’s the info about it: it plays a g below an octave below middle c without any holes, it is approximately 88 cm in length and about 5 cm in diameter. please please please, can you point me in the right direction?
thanks! 
How is the sound for this instrument generated? (Flute embochure, reeds, etc.)
Best wishes,
Jerry
http://www.dougsparling.com/irishmusic/whistle/whistlemake/
About half way down there are some links to tone hole placement. I think most of them are for flute, but that’s ok. Close enough. If they say measure a certain distance from the hole for flute, you measure them from the bottom of your sound hole, or the “blade”.
Hole placement doesn’t have to be exact at all. Hole size can make up for holes improperly placed to a large degree.
http://www.cwo.com/~ph_kosel/flutomat.html
Normally, using this spreadsheet if you plug in the inside diameter, the wall thickness (make sure you choose centimeters or inches and do everything accordingly), key it plays in and the size you want to make the holes (I would suggest around .3125" to .375"), it will tell you where to put the holes. The problem with this is that it doesn’t have an option of LOW LOW G, so you may need to get the measurements for the lowest one it has (A) and two full steps above it (B), figure out the differences in distance and then add those amounts to your distances between holes, starting, as alywas, from the bottom.
Ignore the one about the embouchure since you have already made a mouthpiece that generated sound.
Good luck.
Where to put the holes!
Drill the hole you blow into. No bigger than 3/4 of the diameter of the tube.
Try 10mm to start with on say a 20mm(ish) tube.
Or make yer fipple windway what ever way you can.
Blow - test note, cut small lengths of tube until you get the note you want.
The finger holes - for any flutey/whistlely thing are placed at…
1 = 43%
2 = 50%
3 = 58%
4 = 68%
5 = 73%
6 = 83%
Measurements from the MIDDLE of the hole or windway space i.e. 1/2 way down the oblong space if it’s a whistle.
Mark a straight line down the tube, and measure from the middle of the hole to the end. Multiply the length by the % and mark.
This mark will be the MIDDLE of the hole.
Test.
If the note is flat then file a small amout towards the windway.
If sharp, file a small amount towards the end furthest from yer mouth.
If the hole gets too oblong, use a drill to round it afterwards, but these measurements usually are very close to spot on.
This method makes a six hole whistle/flute that is in tune with itself for a diatonic scale of any key.
HTH
hi, its me, the troubled student again. the sound is generated by a bassoon reed. overall, the instrument looks like an english horn. thanks for the help!
me 